Results 51 to 60 of about 43,628 (311)
FEBS Letters, EarlyView.An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley +1 more source
Higgs bundles twisted by a vector bundle
, 2023 In this paper, we consider a generalization of the theory of Higgs bundles over a smooth complex projective curve in which the twisting of the Higgs field by the canonical bundle of the curve is replaced by a rank 2 vector bundle. We define a Hitchin map
Garcia-Prada, Oscar +2 more
core +1 more source
A criterion for the existence of a flat connection on a parabolic vector bundle [PDF]
, 2002 We define holomorphic connection on a parabolic vector bundle over a Riemann surface and prove that a parabolic vector bundle admits a holomorphic connection if and only if each direct summand of it is of parabolic degree zero.
Biswas, Indranil
core +1 more source
Higher order jet prolongations type gauge natural bundles over vector bundles
Annales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2004 Let $rgeq 3$ and $mgeq 2$ be natural numbers and $E$ be a vector bundle with $m$-dimensional basis. We find all gauge natural bundles ``similar" to the $r$-jet prolongation bundle $J^rE$ of $E$.
Jan Kurek, Włodzimierz M. Mikulski
doaj
Can You Hear the Shape of a Market? Geometric Arbitrage and Spectral Theory
Axioms, 2021 Utilizing gauge symmetries, the Geometric Arbitrage Theory reformulates any asset model, allowing for arbitrage by means of a stochastic principal fibre bundle with a connection whose curvature measures the “instantaneous arbitrage capability”.
Simone Farinelli, Hideyuki Takada
doaj +1 more source
FEBS Letters, EarlyView.Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara +3 more
wiley +1 more source
The natural affinors on some fiber product preserving gauge bundle functors of vector bundles [PDF]
, 2006 summary:We classify all natural affinors on vertical fiber product preserving gauge bundle functors $F$ on vector bundles. We explain this result for some more known such $F$. We present some applications.
Mikulski, Włodzimierz M. +2 more
core
Higher-Order Analogs of Lie Algebroids via Vector Bundle Comorphisms
, 2018 We introduce the concept of a higher algebroid, generalizing the notions of an algebroid and a higher tangent bundle. Our ideas are based on a description of (Lie) algebroids as vector bundle comorphisms - differential relations of a special kind. In our
Jóźwikowski M., Rotkiewicz M.
core +1 more source
Fiber-Preserving Conformal Vector Field of Frame Bundles with Natural Riemannian Metric [PDF]
Memoirs of the Scientific Sections of the Romanian Academy, 2019 We consider the bundle of all oriented orthonormal frames over an orientable Remannian manifold. This bundle has a natural Riemannian metric which is defined by the Riemannian connection of the base manifold.
M.T.K. Abbassi , N. Amri
doaj
Brill-Noether-general limit root bundles: absence of vector-like exotics in F-theory Standard Models
Journal of High Energy Physics, 2022 Root bundles appear prominently in studies of vector-like spectra of 4d F-theory compactifications. Of particular importance to phenomenology are the Quadrillion F-theory Standard Models (F-theory QSMs).
Martin Bies +3 more
doaj +1 more source